Please can you add something to the import process. Currently when importing if the Customer or Supplier account is not set up, Kashflow will fail on those lines and not really give you a good way of correcting it such as adding them manually and then continuing with the import.
Xero will create new suppliers and customers if new ones appear on the import. A similar thing would be great in Kashflow. Any duplicated or misspelt accounts can later be merged.